CN215521576U

CN215521576U - Fastening structure with two kinds of screw threads

Info

Publication number: CN215521576U
Application number: CN202121003870.6U
Authority: CN
Inventors: 林建廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-01-14
Anticipated expiration: 2031-05-10
Also published as: TWM639579U; US20220356897A1; JP3239561U; DE202022102536U1

Abstract

A fastening structure with two threads is characterized in that: the rod body is provided with a first thread, a second thread is arranged at the position of the first thread protruding outwards, and the tooth pitch and the thread width of the first thread are larger than those of the second thread; the outer part is sleeved on the outer side of the rod body and provided with a third thread, a fourth thread is arranged at the position, protruding outwards, of the third thread, the pitch and the thread width of the third thread are larger than those of the fourth thread and correspond to the first thread, and the pitch and the thread width of the fourth thread correspond to those of the second thread; when the rod body and the outer part are combined to rotate and are not blocked, the first threads are embedded with the third threads, the relative positions of the rod body and the outer part can be rapidly moved mutually, when the rod body and the outer part rotate mutually and are blocked, the first threads are separated from the third threads, the second threads are embedded with the fourth threads, the second threads and the fourth threads are locked mutually, and the rod body and the outer part are fixed mutually.

Description

Fastening structure with two kinds of screw threads

Technical Field

The utility model relates to a fastening structure, in particular to a fastening structure with two threads.

Background

The conventional fastening structure with threads generally comprises a screw rod part and a nut part, wherein the screw rod and the nut are mutually embedded, the relative position of the screw rod and the nut is changed when the screw rod and the nut are mutually rotated, and the relative position of the screw rod and the nut is fixed when the screw rod and the nut are mutually locked when the rotation of the screw rod and the nut is blocked.

The existing fastening structure with threads has the defects that for a screw rod with longer length and smaller thread pitch, the longer operation time is needed to be consumed for mutually rotating the screw rod and the nut to the locking position, and conversely, the longer operation time is needed to be consumed for mutually rotating the screw rod and the nut to the proper position. For example, when the mobile phone or tablet clip is obtained, it takes a long time to mutually rotate the screw and the nut to proper positions, so that the clamping portions at the two ends of the mobile phone or tablet clip are mutually separated to proper positions, the mobile phone or tablet is placed in the screw and the nut are mutually rotated to a locking position, and the mobile phone or tablet is fixed on the mobile phone or tablet clip. On the contrary, when the mobile phone or the tablet is taken out from the mobile phone clamp or the tablet clamp, the clamping parts at the two ends of the mobile phone clamp or the tablet clamp are required to be mutually close to the minimum accommodating distance, so that the screw rod and the nut are required to be mutually rotated for a long time, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the disadvantage that the prior fastener structure with threads consumes longer operation time when in use, the utility model provides a fastening structure with two threads, which comprises a rod body and an outer part, wherein the rod body is provided with a first thread and a second thread, the pitch and the width of the first thread are larger than those of the second thread, the second thread is arranged at the position where the first thread protrudes outwards, the outer part is provided with a third thread and a fourth thread, the pitch and the width of the third thread are larger than those of the fourth thread and correspond to the first thread, the fourth thread is arranged at the position where the third thread protrudes outwards and corresponds to the second thread, the rod body and the outer part are combined, when the first thread and the third thread are embedded and mutually rotate, because the pitch of the first thread and the third thread is larger, the relative position of the rod body and the outer part can be quickly moved, when the mutual rotation of the rod body and the outer part is blocked, the first thread is disengaged from the third thread, and the second thread is engaged with the fourth thread to lock the rod member and the outer member to each other. The fastening structure with two threads utilizes two thread groups with different tooth pitches to simultaneously achieve the functions of quick movement and quick locking and loosening.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a fastening structure with two threads is characterized in that: the rod body is provided with a first thread, a second thread is arranged at the position of the first thread protruding outwards, wherein the pitch and the width of the first thread are larger than those of the second thread; the outer part is sleeved on the outer side of the rod body and provided with a third thread, and a fourth thread is arranged at the position of the third thread protruding outwards, wherein the pitch and the thread width of the third thread are larger than those of the fourth thread and correspond to the first thread, and the pitch and the thread width of the fourth thread correspond to those of the second thread; and when the rod body and the outer part are combined to rotate and are not blocked, the first thread is embedded with the third thread, the relative positions of the rod body and the outer part can be quickly moved mutually, so that when the rod body and the outer part rotate mutually and are blocked, the first thread is separated from the third thread, the second thread is embedded with the fourth thread, the second thread and the fourth thread are locked mutually, the rod body and the outer part are fixed mutually, the second thread and the fourth thread are loosened mutually, the second thread is separated from the fourth thread, the first thread is embedded with the third thread, and the relative positions of the rod body and the outer part can be quickly moved mutually.

Preferably, the outer member is annular.

Preferably, the outer member is formed of at least one arcuate portion, the third and fourth threads of each arcuate portion being discontinuous but continuous.

Preferably, the mobile phone holder further comprises a clamp for clamping a mobile phone, the clamp further comprises a first clamping portion and a second clamping portion, the second clamping portion is provided with the outer member at a proper position, the rod member penetrates into the clamp from the outer side of the first clamping portion and penetrates through the outer member, one end of the rod member is provided with a clamping position, the clamping position fixes the relative position of the rod member and the first clamping portion and can rotate mutually, the mobile phone is placed between the first clamping portion and the second clamping portion, by rotating the rod member, the first thread of the rod member is embedded with the third thread of the outer member and rotates mutually, the first clamping portion and the second clamping portion can rapidly approach each other to clamp the mobile phone, at the moment, the rod member is rotated towards the locking direction, the first thread is separated from the third thread, and the second thread is embedded with the fourth thread until the rod member and the outer member are fixed mutually, the first clamping part and the second clamping part tightly clamp the mobile phone, otherwise, the rod body piece is rotated towards the loosening direction, the mobile phone can be taken down from the clamp, the second thread is separated from the fourth thread, the first thread is embedded with the third thread, and the first clamping part and the second clamping part can rapidly move mutually.

The utility model has the advantages that the utility model uses two groups of thread groups with different tooth pitches to simultaneously achieve the functions of quick movement and quick locking and loosening in the same rod piece and the same outer part, has simple structure, can avoid the risk of failure and achieves the purposes of convenient carrying and easy operation. The utility model can be applied to products such as mobile phone clamps or flat plate clamps, and can also be applied to other products which need to use longer screws to adjust the distance and fix.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a first schematic diagram of an embodiment of the present invention;

FIG. 2 is a second schematic diagram according to an embodiment of the present invention;

FIG. 3 is an exploded view of the embodiment of the present invention;

FIG. 4A is a schematic diagram of a first thread and a third thread engaged with each other according to an embodiment of the utility model;

FIG. 4B is a cross-sectional view along line AA of a first thread and a third thread engaged with each other in accordance with an embodiment of the present invention;

FIG. 5A is a schematic diagram of a second thread and a fourth thread engaged with each other according to an embodiment of the present invention;

FIG. 5B is a cross-sectional view of a second thread and a fourth thread engaged along line BB according to an embodiment of the present invention;

FIG. 6A is a schematic view of the combination of the two rod members and the arc-shaped portion according to the embodiment of the present invention;

FIG. 6B is a schematic view of a two-ring outer member according to an embodiment of the present invention;

FIG. 6C is a schematic view of two arcuate portions of a two-ring outer member cut along line CC in accordance with an embodiment of the present invention;

FIG. 7A is a schematic view of a third exemplary embodiment of a clamp;

FIG. 7B is a schematic diagram of a three-clamp device for clamping a mobile phone according to an embodiment of the present invention;

FIG. 8A is an exploded view of the first clamping portion and the second clamping portion of the third clamping apparatus according to the embodiment of the present invention;

FIG. 8B is a schematic side view of a third exemplary embodiment of a fixture according to the present invention;

FIG. 8C is a schematic cross-sectional view of a third exemplary clamp taken along line DD in accordance with the present invention;

wherein the reference numerals are as follows:

1 body member

11 first screw thread

12 second screw thread

13 position clip

2 outer part

21 third screw thread

22 fourth screw thread

3 arc part

4 clamping apparatus

41 first clip part

42 second clip part

5 Mobile phone

Detailed Description

Embodiments of the present invention are described below with reference to fig. 1 to 8C. The description is not intended to limit the embodiments of the utility model but is one of the examples of the utility model.

Fig. 1 to 5B show a fastening structure with two kinds of threads according to a first embodiment of the present invention, which is characterized in that: the rod piece 1 is provided with a first thread 11, a second thread 12 is arranged at the position of the outward bulge of the first thread 11, wherein the pitch and the thread width of the first thread 11 are larger than those of the second thread 12; the outer part 2 is sleeved outside the rod body 1, the outer part 2 is provided with a third thread 21, a fourth thread 22 is arranged at the position of the third thread 21 protruding outwards, wherein the pitch and the thread width of the third thread 21 are larger than those of the fourth thread 22 and correspond to the first thread 11, and the pitch and the thread width of the fourth thread 22 correspond to those of the second thread 12; and when the rod body 1 and the outer part 2 are combined to rotate and are not blocked, the first thread 11 is embedded with the third thread 21, the relative positions of the rod body 1 and the outer part 2 can be rapidly moved mutually, when the rod body 1 and the outer part 2 rotate mutually and are blocked, the first thread 11 is separated from the third thread 21, the second thread 12 is embedded with the fourth thread 22, the second thread 12 is locked with the fourth thread 22, the rod body 1 and the outer part 2 are fixed mutually, the second thread 12 is loosened from the fourth thread 22, the second thread 12 is separated from the fourth thread 22, the first thread 11 is embedded with the third thread 21, and the relative positions of the rod body 1 and the outer part 2 can be rapidly moved mutually. The utility model uses two groups of thread groups with different tooth pitches to simultaneously achieve the functions of quick movement and quick locking and loosening on the same rod piece 1 and the same outer piece 2.

As shown in fig. 4A and 4B, in the first embodiment of the present invention, the first thread 11 and the third thread 21 are engaged with each other, and the relative pitch of the threads is larger, so that when the first thread 11 and the third thread 21 having a relatively larger pitch are engaged with each other, the relative positions of the rod 1 and the outer member 2 can be rapidly moved relative to each other, that is, when the rod 1 and the outer member 2 rotate one turn relative to each other, one pitch distance of the first thread 11 or the third thread 21 can be relatively moved. In the utility model, for the rod body 1 and the outer part 2 corresponding to the rod body 1 with the same thickness, the pitch of the first thread 11 and the third thread 21 can affect the speed and smoothness of the relative movement of the rod body 1 and the outer part 2.

As shown in fig. 4A to 5B, the larger pitch of the first thread 11 and the third thread 21 facilitates quick movement, but does not facilitate relative locking of the rod member 1 and the outer member 2, which is mainly used for mutual movement of the rod member 1 and the outer member 2, but not for mutual locking of the rod member 1 and the outer member 2, and therefore, the second thread 12 and the fourth thread 22 are required to be locked to each other to fix the rod member 1 and the outer member 2.

As shown in fig. 5A and 5B, in a diagram of the first embodiment of the present invention, the second thread 12 and the fourth thread 22 are engaged with each other, and the thread pitch is relatively small, when the rod member 1 and the outer member 2 rotate and are blocked, the first thread 11 is disengaged from the third thread 21, the second thread 12 is engaged with the fourth thread 22, the second thread 12 is locked with the fourth thread 22, the rod member 1 and the outer member 2 are fixed to each other, the second thread 12 is loosened from the fourth thread 22, the second thread 12 is disengaged from the fourth thread 22, the first thread 11 is engaged with the third thread 21, and the relative positions of the rod member 1 and the outer member 2 can rapidly move relative to each other. The pitch and the thread width of the second thread 12 and the fourth thread 22 of the present invention are relatively small, and are mainly used for locking the rod body 1 and the outer member 2 with each other, but not for relative movement of the rod body 1 and the outer member 2.

As shown in fig. 1, which is a diagram of the outer member according to the first embodiment of the present invention, the outer member 2 is ring-shaped, that is, the outer member 2 has the third thread 21 continuously.

As shown in fig. 6A to 6C, which are views of the outer member according to the second embodiment of the present invention, in fig. 6A, the outer member 2 is composed of at least one arc portion 3, and the third thread 21 and the fourth thread 22 of each arc portion 3 are discontinuous but continuous and can correspond to the first thread 11 and the second thread 12 of the rod member 1, respectively. The outer member 2 of the present invention may be formed by two arc portions 3 forming a ring, as shown in fig. 6B and 6C, and a ring is divided into two arc portions 3, or may be formed by three arc portions 3 forming a ring, and there may be a gap or no gap between the arc portions 3, but it is necessary to maintain continuity between the third thread 21 and the fourth thread 22, so that the rod member 1 and the outer member 2 can rotate smoothly.

As shown in fig. 7A to 8C, in a third embodiment of the present invention, there is further provided a clamp 4, the clamp 4 is used for clamping a mobile phone 5, as shown in fig. 8A, the clamp 4 further has a first clamping portion 41 and a second clamping portion 42, the second clamping portion 42 is provided with the outer part 2 at a suitable position, the rod 1 penetrates into the clamp 4 from the outside of the first clamping portion 41 and passes through the outer part 2, one end of the rod 1 is provided with a detent 13, the detent 13 fixes the relative positions of the rod 1 and the first clamping portion 41 and can rotate mutually, the mobile phone 5 is placed between the first clamping portion 41 and the second clamping portion 42, by rotating the rod 1, the first thread 11 of the rod 1 and the third thread 21 of the outer part 2 are engaged and rotate mutually, the first clamping portion 41 and the second clamping portion 42 can rapidly approach each other to clamp the mobile phone 5, at this time, when the rod 1 is rotated in the locking direction, the first thread 11 is disengaged from the third thread 21, and the second thread 12 is engaged with the fourth thread 22 until the rod 1 and the outer member 2 are fixed to each other, the first clamping portion 41 and the second clamping portion 42 tightly clamp the mobile phone 5, otherwise, when the rod 1 is rotated in the releasing direction, the mobile phone 5 can be taken out from the clamp 4, the second thread 12 is disengaged from the fourth thread 22, and the first thread 11 is engaged with the third thread 21, the first clamping portion 41 and the second clamping portion 42 can be rapidly moved to each other. The embodiment of the utility model is applied to a mobile phone clamp and can also be applied to a flat plate clamp, and the defects that when the traditional mobile phone clamp or the flat plate clamp is fixed by using a single-thread long screw rod, two clamp parts cannot move quickly and the time is consumed are solved.

Preferably, to increase the stability of the body 1 and the outer part 2 in rotation relative to each other, the first thread 11 may be a double or multiple thread, while the third thread 21 corresponds to the double or multiple thread of the first thread, and similarly, the second thread 12 may also be a double or multiple thread, while the fourth thread 22 corresponds to the double or multiple thread of the first thread.

While the foregoing description and description are of the preferred embodiment of the present invention, other modifications of the utility model shall be apparent to those skilled in the art from the following claims and their equivalents, and it is intended that such modifications shall be included within the scope of the appended claims.

Claims

1. A fastening structure with two threads is characterized in that:

the rod body is provided with a first thread, a second thread is arranged at the position of the first thread protruding outwards, wherein the pitch and the width of the first thread are larger than those of the second thread; and

the outer part is sleeved outside the rod body and provided with a third thread, and a fourth thread is arranged at the position of the third thread protruding outwards, wherein the pitch and the thread width of the third thread are larger than those of the fourth thread and correspond to the first thread, and the pitch and the thread width of the fourth thread correspond to those of the second thread; and

when the rod body and the outer part are combined to rotate and are not blocked, the first thread is embedded with the third thread, the relative positions of the rod body and the outer part can be rapidly moved mutually, when the rod body and the outer part rotate mutually and are blocked, the first thread is separated from the third thread, the second thread is embedded with the fourth thread, the second thread and the fourth thread are locked mutually, the rod body and the outer part are fixed mutually, the second thread and the fourth thread are loosened mutually, the second thread is separated from the fourth thread, the first thread is embedded with the third thread, and the relative positions of the rod body and the outer part can be rapidly moved mutually.

2. The fastening structure of claim 1, wherein the outer member is ring-shaped.

3. A fastening structure having two types of threads according to claim 1, wherein the outer member is formed of at least one arcuate portion, and the third thread and the fourth thread of each arcuate portion are discontinuous but continuous.

4. The tightening structure with two types of threads as claimed in claim 1, further comprising a clamp for clamping a mobile phone, the clamp further comprising a first clamping portion and a second clamping portion, the second clamping portion being provided with the outer member at a suitable location, the rod member penetrating into the clamp from outside the first clamping portion and penetrating through the outer member, one end of the rod member being provided with a detent for fixing the relative positions of the rod member and the first clamping portion and being capable of rotating with respect to each other, the mobile phone being placed between the first clamping portion and the second clamping portion, by rotating the rod member, the first thread of the rod member and the third thread of the outer member are engaged and rotated with each other, the first clamping portion and the second clamping portion are rapidly moved toward each other to clamp the mobile phone, and at this time, the rod member is rotated in the locking direction, the first thread and the third thread are disengaged from each other, and the second screw thread and the fourth screw thread are embedded to the rod body piece and the outer piece and are fixed with each other, so that the first clamping part and the second clamping part tightly clamp the mobile phone, otherwise, the rod body piece is rotated towards the loosening direction, the mobile phone can be taken out of the clamp, the second screw thread and the fourth screw thread are separated, the first screw thread and the third screw thread are embedded, and the first clamping part and the second clamping part can rapidly move with each other.